2022 TOYOTA BZ4X cool

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2-1. Electric vehicle system
Electric Vehicle system
12-volt battery
Provides electricity to various vehicle systems such as the SRS airbags, headlights,
wipers, etc.
*: AWD models only
■When braking (regenerative
braking)
The battery electric motor (traction
motor) charges the traction battery.
The driving range can be extended
by actively using this regenerative
braking to store electricity in the
traction battery.
The battery electric vehicle is
driven using electricity, which is
received from an external power
source and stored in the traction
battery. Not only public charging
stations, but also household sock-
ets can be used for charging. Pro-
cedures are different from refueling
a conventional vehicle. Therefore,
make sure to read the following
thoroughly.
 Charging equipment (P.95)
 AC charging cable (P. 9 8 )
 Power sources that can be used
( P.112)
 Things to know before charging
( P.118)
 How to charge your vehicle
( P.121, 129)
 When charging cannot be per-
formed normally ( P.152)
■Regenerative braking
In the following situations, kinetic energy
is converted to electric energy and deceleration force can be obtained in conjunction with the recharging of the
traction battery.
●The accelerator pedal is released
while driving with the shift position in D.
●The brake pedal is depressed while driving with the shift position in D.
■Charging the 12-volt battery
The 12-volt battery is charged from the
traction battery when the EV system is operated or while the traction battery is being charged.
If the vehicle has not been used for a long time, the 12-volt battery may become low due to self-discharge. If this
occurs, follow the correct procedures. ( P.544)
■When not using the vehicle for an
extended period of time
●When the vehicle will not be used for
an extended period of time, charge the traction battery once a month. This protects the traction battery from
extreme voltage decline due to self discharging.
●When the vehicle will not be used for an extended period of time, the 12-volt battery will be charged from the
traction battery to reduce the risk of the 12-volt battery discharged. In this case, the cooling fan may operate,
however it is not a malfunction.
●To prevent the 12-volt battery from
being discharged, do not leave the charging port lid open or the charging cable connected to the vehicle.
Charging

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2-1. Electric vehicle system
■Charging the traction battery
Be sure to maintain the traction battery charge level suitable for your driving needs.
If the traction battery fully discharges, the vehicle cannot be driven at all. When the battery becomes low, charge it as
soon as possible.
■If the traction battery becomes low
●If the traction battery becomes low,
the traction battery charge warning light comes on or flashes and a mes-sage will be displayed on the multi-
information display. ( P.517)
●If the traction battery is completely
discharged, the EV system cannot be started and driving will not be possi-ble. When the traction battery
becomes low, charge it as soon as possible.
■Sounds and vibrations specific to an battery electric vehicle
Because there is no engine sound or vibration, it is easy to mistake the bat-tery electric vehicle for being off when it
is actually still running, as indicated by the “READY” indicator being illuminated. For safety, make sure to always shift the
shift position to P and apply the parking brake when parked.
Before and after the EV system is
started, the following sounds and vibra- tions may occur. However, these sounds and/or vibrations are not signs of mal-
functions:
●The brake system operation sound
may be heard from the front of the vehicle when the driver’s door is opened.
●Motor sounds may be heard from the motor compartment or luggage com-
partment.
●Electrical relay sounds may be heard
from the motor compartment when the EV system starts or stops.
●Relay operating sounds such as a snap or soft clank will be emitted from the traction battery in the following sit-
uations:
• When the EV system is started or stopped• When charging starts or completes
• When the vehicle is driven the first time after the traction battery has been charged using DC charging
●Sounds may be heard due to regener-ative braking when the brake pedal is
depressed or as the accelerator pedal is released.
●Cooling fan operating sounds from the radiator.
●The operation sound of the air condi-tioning system (air conditioning com-pressor, blower motor).
■Maintenance, repair, recycling, and
disposal
Contact any authorized Toyota retailer or Toyota authorized repairer, or any reli-
able repairer regarding maintenance, repair, recycling and disposal. Do not dispose of the vehicle yourself.
A sound which changes in accor-
dance with the driving speed, will
be played in order to warn people
nearby of the vehicle’s approach.
This sound may be heard inside the
vehicle. The sound will stop when
the vehicle speed exceeds approxi-
mately 25 km/h (15 mph).
■Acoustic Vehicle Alerting System
In the following cases, the Acoustic Vehicle Alerting System may be difficult
for surrounding people to hear.
●In very noisy areas
●In the wind or the rain
Also, as the Acoustic Vehicle Alerting
System is installed on the front of the
Acoustic Vehicle Alerting
System

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2-1. Electric vehicle system
The illustration is an example for explanation and may differ f rom the actual item.
Warning label
High voltage cables (orange)
ESU: Electricity Supply Unit (built in onboard traction battery char-
ger/DC-DC converter)
Service plug
AC charging inlet
Electric Vehicle system precautions
Be careful of the high voltage components (nominal voltage at 3 55.2
V), such as the traction battery , electricity supply unit, orange
colored high voltage cables, and electric motor, as well as hig h tem-
perature components such as the cooling radiator, which are pro -
vided on the battery electric vehicle. For the high voltage
components, warning labels are provided on them. Read them when
they need to be handled.
System components

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2-1. Electric vehicle system
Electric Vehicle system
A value for which a sufficient level
of driving performance can be pro-
vided is estimated based on the
remaining charge of the traction
battery, the state of the traction bat-
tery, the outside temperature, etc.,
and is displayed on the multi-infor-
mation display. ( P.172)
When the outside temperature is
low, the traction battery output may
be decreased, causing the possible
driving distance to be shorter. How-
ever, this is not a malfunction.
Charge the traction battery earlier
than usual.
Possible driving distance varies sig-
nificantly depending on how the
vehicle is driven, road conditions,
the weather, the outside tempera-
ture, usage conditions of electrical
components and the number of
occupants.
Possible driving distance could be
extended if the followings are per-
formed:
 Maintain a safe distance from the
vehicle in front and avoid unnec-
essary acceleration and deceler-
ation
 Accelerate and decelerate the
vehicle as smoothly as possible
 Drive at moderate speeds as
much as possible and maintain a
constant speed
 Set the air conditioning system to
a moderate temperature and
avoid using the heating and cool-
ing functions excessively.
 Use tires of the specified size
and maintain the specified tire
pressure
 Do not add unnecessary weight
to the vehicle
The followings indicate that
charging has been carried out prop-
erly.
 The charging indicator turns off
 “Charging complete” is displayed
on the multi-information display
when a door is opened while the
power switch is off. ( P.117)
Regardless of the type of power
source or whether the charging
schedule function is used, charging
is completed if the above can be
Driving range
The driving range displayed on
the multi-information display,
etc., shows the reference dis-
tance that driving is possible,
and the actual distance that
can be driven may differ from
that displayed.
Displayed value
Tips for extending the driv-
ing range
Display when charging is
completed

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2-2. Charging
Electric Vehicle system
days and the traction battery heater
automatically stops. It automatically
insulates the traction battery in
extremely low temperatures.
 This control stops 31 days after
the charging cable is connected,
even if it is still connected to the
vehicle.
 When this control operates,
charging schedule settings are
ignored and charging starts
immediately.
■Traction battery cooler
When the traction battery is hot and
the AC charging cable is connected
to the vehicle, this function cools
the traction battery to protect it.
The function may operate when
continuously driving at high speeds
such as driving on highways or
freeways, or during DC charging.
■Using My Room Mode during DC charging
 P. 1 4 6
■Traction battery heater
●Traction battery heater may operate when charging is not being performed.
●When Traction battery heater is oper-ating, the charging indicator will illumi-
nate.
●When Traction battery heater is oper-
ating during charging, the charging may take longer than normal.
●The remaining charge of the traction battery declines when the traction bat-tery heater operates, it might be nec-
essary to recharge the traction battery again in order to supplement the remaining charge.
■Traction battery cooler
●For AC charging: Traction battery cooler settings can be changed on the
multi-information display. ( P.115)
●The charging indicator will illuminate
when the traction battery cooler is on standby or operating.
●When the charge level of the traction battery is low, the traction battery cooler may not operate, even if the
temperature of the traction battery is high.
●When the following conditions are met while the traction battery cooler is operating, the cooling operation will
stop. • The hood is opened• The power switch is turned to ACC or
ON. • The shift position is changed to any position other than P
• The Remote Air Conditioning System is operated ( P.427) • The remaining charge of the traction
battery drops below a certain amount
●The traction battery cooler operates
using power supplied by the traction battery and an external power source.• While the traction battery cooler is
operating, the charge of the traction battery will increase and decrease within a certain range, and will not
increase as during AC charging. • When the traction battery cooler oper-ates, charger will recognize it as the
battery being charged. If this function operates while a charger which charges a charging fee is connected
to the vehicle, AC charging fees will apply.
■Changing of the traction battery cooler setting
Setting can be changed on the
multi-information display.
Use the meter control switches
( P.176) and select “Vehicle Settings”, “Charging Settings”, “Battery Cooler”, and change the setting.

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2-2. Charging
Electric Vehicle system
Before charging, always check the
following items.
 The parking brake is applied.
( P.254)
 The power switch is turned to
OFF. ( P.243)
 Lights such as the headlights,
emergency flashers and interior
lights, etc., are turned off.
If these light switches are turned on,
then these features will consume elec-
tricity, and charging time will increase.
Before charging, make sure that
each part of the AC charging cable
is in good condition. ( P.106)
■During charging
●The charging starting time may differ
depending on the state of the vehicle, but this does not indicate a malfunc-
tion.
●During charging, sounds may be
heard from near the traction battery in accordance with the operation of the air conditioning system or “Battery
Cooler” ( P.115).
●During and after charging, the motor
compartment and its surrounding area in which the onboard traction battery charger is installed may get warm.
●The surface of the CCID (Charging Circuit Interrupting Device) may
become hot, but this does not indicate a malfunction.
●Depending on radio wave conditions,
interference may be heard on the
radio.
■When charging using a public charging facility
●When charging using a public charging facility, check the setting of the charging schedule function.
• When the charging schedule is regis- tered, temporarily turn off the function or turn “Charge Now” on. ( P.134)
• When the charging schedule is set to on, charging will not start even if the AC charging cable is connected. Also,
charging fee may occur due to con- nection of the AC charging cable.
■Capacity reduction of the traction battery
The capacity of the traction battery will decline gradually when the traction bat-tery is in use. The rate at which it
declines will differ in accordance with environmental conditions and the way in which the vehicle is used. Observing the
following can help suppress the decline in the traction battery capacity.
●Avoid parking the vehicle in high tem-perature areas, under direct sunlight when the traction battery is fully
charged.
●Avoid accelerating and decelerating
frequently and suddenly.
●Avoid frequent driving at high speed.
●Use the charging schedule function as much as possible in order to fully
charged the traction battery before starting off. ( P.134)
●Avoid frequent DC charging
Also, if the capacity of the traction bat-
tery capacity reduces, the distance that
can be driven decreases. However,
vehicle performance does not signifi-
cantly become worse.
■When the remaining charge of the traction battery is low after charging
In the following situations, the remaining charge of the traction battery after
Confirm the following before
charging
Inspecting the AC charging
cable

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2-2. Charging
charging completes may be less than
normal in order to protect the traction battery (the driving range after the bat-
tery is fully charged may be shorter).*
●Charging is performed when the out- side temperature is low or high
●Charging is performed immediately after high-load driving or in extreme
heat
In any other situation, if the remaining
charge of the traction battery is signifi-
cantly lower than normal after charging
completes, have the vehicle inspected
by any authorized Toyota retailer or
Toyota authorized repairer, or any reli-
able repairer.
*: When this occurs, even if the remain-
ing charge display of the traction bat-
tery shows that it is fully charged, the
remaining charge rapidly decreases
faster than normal.
■When the charging amount sent to the traction battery decreases
When the amount of power supplied by
the charger is low or operation of the battery heater, etc., reduces the charging power sent to the traction bat-
tery, the charging amount sent to the traction battery may decrease.
■Charging time may increase
In the following situations, charging time
may become longer than normal:
●In very hot or very cold temperatures.
●When the traction battery becomes hot, such as immediately after high-
load driving.
●The vehicle is consuming a lot of elec-
tricity, for example, when the head- lights are on, etc.
●When using “My Room Mode”. ( P.145)
●There is a power outage during charging.
●There is an interruption in the electri-cal supply.
●There is a drop in the voltage of exter-
nal power source.
●The charge in the 12-volt battery is
low, for example due to the vehicle being left unused for a long period of time.
●When the upper limit of charging cur-rent is changed in the charging cur-
rent setting of the vehicle ( P.124)
●When the battery heater operates.
( P. 1 1 5 )
●When the “Battery Cooler” is operated
before charging. ( P. 1 1 5 )
●When the plug generates heat due to
a loose socket connection, etc.
●When adjusting the power supply with
the charger.
●When frequently and repeatedly using
DC charging.
●When selecting “DC charging power”
setting other than “MAX”.
●When the temperature of charging-
related parts is high.
■Charging electricity
This vehicle can be charged up to approximately 7 kW.
However, depending on the used char- ger or AC charging cable, charging elec-tricity may be limited.

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2-2. Charging
WARNING
●When charging outdoors, make sure to connect to a rain-tight
socket for outdoor use. Ensure the rain-tight socket cover closes completely. If the rain-tight
socket cover cannot be closed, install a rain-tight socket cover that will close.
●In order to stop charging at the charging station, follow the instruc-
tions of the charger.
●If any heat, smoke, odors, noise or
other abnormalities are noticed during charging, stop charging immediately.
●Do not insert the plug if the socket is submerged in water or snow.
●When charging while it is raining or snowing, do not connect or discon-
nect the plug if your hands are wet. Also, do not get the plug or socket wet.
●Do not charge the vehicle during a lightning storm.
●Prevent the AC charging cable from being caught in the door or back
door.
●Do not let the wheels on the AC
charging cable, plug, charging con- nector and CCID (Charging Circuit Interrupting Device).
●Firmly insert the plug into the socket.
●Do not use an extension cord and converting adaptor.
●Close the hood before using the charging system.The cooling fan may start operating
suddenly. Touching or getting close to rotating parts such as the fan may cause your hands or clothes
(especially a necktie or scarf) to become caught and result in a seri-ous injury.
●After connecting the charging cable, confirm that it is not wound
around anything.
●If the power indicator on the CCID
(Charging Circuit Interrupting Device) does not illuminate after plugging the AC charging cable into
the socket, unplug it immediately.
■If the error warning indicator on
the CCID (Charging Circuit Inter- rupting Device) illuminates or flashes during charging
There may be an electrical leakage in the power source path, or there may be a malfunction in the AC charging
cable or CCID (Charging Circuit Inter- rupting Device).
Refer to P.102 and follow the correc-
tion procedure. If the error warning indicator does not turn off even after performing the correction procedure,
immediately stop charging, remove the AC charging cable and contact any authorized Toyota retailer or
Toyota authorized repairer, or any reli- able repairer. Continuing to charge the vehicle in that condition may lead
to unforeseen accidents or serious injury.
■Onboard traction battery charger
The onboard traction battery charger is located in the motor compartment.
Make sure to observe the following precautions regarding the onboard traction battery charger. Failure to
observe these precautions may result in death or serious injury such as burns and electric shocks.